qmje.github.io

Explains the function of each of the files in this directory

1d_ho.py -- Solves the 1D quantum harmonic oscillator using a

spectral [Fourier split-step] method. Plots i) density |\psi|^2

sampled during imaginary time propagation, ii) comparison between

analytical and numerical solution, iii) realtime space-time

density plot

igt_2d_hpc.py -- Computes the ground state of a trapped, rotating

2D condensate. Here the rotation comprises a rigid as well as nonlinear

rotation. The numerical method is a basic finite difference method. The

code saves the output as a npz Python data file for later processing.

vortex_tracker.py -- Sorts the identical phase defects [vortices] present in a

2D wavefunction \psi(x,y) into the correct order as a function of time, t.

Looks for vortex at t = t + 1 with shortest distance from current vortex.

Produces (x,y,t) trajectory plot of the phase defects dynamics in the trap.